Long strip roof-contacted filling system

Abstract

The utility model provides a long strip roof-contacted filling system which comprises a first wall body, a second wall body, a waterproof coating and a filling pipeline, the first wall body and the second wall body are arranged in a roadway to be filled in a spaced mode to form a filling cavity, and one of the first wall body and the second wall body is provided with a first through hole; the waterproof coating is arranged on the inner wall face of the filling cavity, and the filling pipeline is arranged in the first through hole in a penetrating mode so as to communicate the outside with the filling cavity. The long-strip-belt roof-contacted filling system is high in safety performance.

Description

Technical Field

[0001] The utility model relates to the technical field of roadway filling equipment, and specifically, to a long strip roof-connecting filling system. Background Art

[0002] In traditional roof-connecting filling methods, the quality of the roof-connecting filling directly affects the filling effect of the goaf. During the actual filling process, due to the influence of blasting, mining, and rock bursts, the roof often presents an uneven and convex state that is not conducive to filling, making the filling process difficult.

[0003] The long strip filling roof-connecting method is a technology for realizing contact surface filling in mines or coal mines. The long strip filling roof-connecting method often adopts laying a barrier pad such as a geotextile above the roof contact surface, using wet and dry filling strips for intermittent filling thereon, opening inclined grooves on the roof, and using tools such as plastic pipes for grouting. However, when filling the goaf, the filling slurry will leak or penetrate into the cracks in the roadway wall of the goaf, causing roof subsidence and compression of the cushion layer in the goaf. At the same time, setting the barrier pad increases the construction cost and reduces the filling effect, resulting in lower filling effect and safety of the filling work. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to a certain extent.

[0005] For this purpose, an embodiment of the utility model proposes a long strip roof-connecting filling system, which has good safety performance and improves the filling effect.

[0006] The long strip roof-connecting filling system of the embodiment of the utility model includes: a first wall and a second wall for blocking and filling a roadway to be filled, the first wall and the second wall are arranged at intervals in the roadway to be filled to form a filling chamber, and one of the first wall and the second wall is provided with a first through hole; a waterproof coating, the waterproof coating is arranged on the inner wall surface of the filling chamber; a filling pipeline for grouting into the filling chamber, the filling pipeline passes through the first through hole to communicate the outside with the filling chamber.

[0007] By covering the inner wall surface of the roadway to be filled with a waterproof coating, the long strip roof-connecting filling system of the embodiment of the utility model can prevent the leakage of the filling slurry or the penetration of the filling slurry into the cracks during the filling operation of the filling chamber, ensuring the safe progress of the filling work, and thus improving the safety of the long strip roof-connecting filling system of the embodiment of the utility model.

[0008] Therefore, the long strip roof-connecting filling system of the embodiment of the utility model has high safety.

[0009] In some embodiments, the thickness dimension of the waterproof coating is 2 mm - 6 mm.

[0010] In some embodiments, there are a plurality of first through holes, and the plurality of first through holes are provided on the first wall body, and the plurality of first through holes are spaced apart in the horizontal direction; there are a plurality of filling pipes, and the plurality of filling pipes are respectively inserted through the plurality of first through holes.

[0011] In some embodiments, the spacing distance between adjacent filling pipes in the horizontal direction is 2 m - 3.5 m.

[0012] In some embodiments, the long strip roof - contacting filling system further includes: an exhaust pipe, and one of the first wall body and the second wall body is further provided with a second through hole, and the exhaust pipe is inserted through the second through hole to communicate the outside with the filling chamber.

[0013] In some embodiments, there are a plurality of second through holes, and the plurality of second through holes are provided on the second wall body, and the plurality of second through holes are spaced apart in the horizontal direction; there are a plurality of exhaust pipes, and the plurality of exhaust pipes are respectively inserted through the plurality of second through holes.

[0014] In some embodiments, the plurality of exhaust pipes and the plurality of filling pipes are arranged alternately in the horizontal direction.

[0015] In some embodiments, the spacing distance between adjacent filling pipes in the horizontal direction is 2 m - 3.5 m.

[0016] In some embodiments, a groove is formed on the top wall surface of the filling chamber, and the filling pipe has a first slurry outlet, and the first slurry outlet is located in the groove.

[0017] In some embodiments, the long strip roof - contacting filling system further includes: a dehydration device, the dehydration device includes a second slurry outlet, the filling pipe has a slurry inlet, and the second slurry outlet is communicated with the slurry inlet. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the long strip roof - contacting filling system according to the embodiment of the present utility model.

[0019] Reference Numerals:

[0020] Long strip roof - contacting filling system 100;

[0021] First wall body 1; First through hole 11; Second wall body 2; Filling pipe 3; First slurry outlet 31;

[0022] Tunnel to be filled 4; Waterproof coating 41; Filling chamber 42; Inner wall surface 43; Groove 431. Detailed implementation mode

[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] The long strip roof - contacting filling system 100 of the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0025] As Figure 1 shown, the long strip roof - contacting filling system 100 of the embodiments of the present invention includes: a first wall 1, a second wall 2, a waterproof coating 41, and a filling pipeline 3.

[0026] The first wall 1 and the second wall 2 are used to block and fill the tunnel to be filled 4. The first wall 1 and the second wall 2 are spaced in the tunnel to be filled 4 to form a filling chamber 42. In other words, the first wall 1 and the second wall 2 are sequentially spaced along the extending direction of the tunnel to be filled 4 to block both ends of the tunnel to be filled 4, and a filling chamber 42 is formed between the first wall 1 and the second wall 2 and the tunnel to be filled 4.

[0027] One of the first wall 1 and the second wall 2 is provided with a first through - hole 11. The waterproof coating 41 is provided on the inner wall surface 43 of the filling chamber 42. The filling pipeline 3 is used to inject slurry into the filling chamber 42, and the filling pipeline 3 passes through the first through - hole 11 to communicate the outside with the filling chamber 42.

[0028] By covering the waterproof coating 41 on the wall surface of the tunnel to be filled 4, the long strip roof - contacting filling system 100 of the embodiments of the present invention can prevent the leakage of the filling slurry or the penetration of the filling slurry into the fissures during the filling operation of the filling chamber 42, ensuring the safe progress of the filling work, and thus improving the safety of the long strip roof - contacting filling system 100 of the embodiments of the present invention.

[0029] Furthermore, for example, during filling, when using the pipe - breaking technology for control and positioning, first, it is necessary to position on the contact surface, and use existing pipe - breaking devices or methods to determine the filling height. Subsequently, exhaust and pressurize at the top of the filling pipeline 3 to form a separation film through the viscous filling slurry sand in the pipeline to prevent the filling slurry sand from overflowing. Next, different areas can be filled and controlled by moving and replacing the filling pipeline 3. After filling, recovery and waste reduction are carried out by methods such as cleaning the pipeline, so as to ensure that the height of the filling area is within a predetermined range, improve the roof - contacting rate of the filling body, contribute to maintaining the stability and safety of the mine, and avoid the increase in ground pressure and accident risks caused by excessive filling.

[0030] Thus, the long strip roof-connecting filling system 100 of the embodiment of the present utility model has high safety.

[0031] To make the present application easier to understand, taking the extension direction of the roadway 4 to be filled being consistent with the left-right direction as an example, the long strip roof-connecting filling system 100 of the embodiment of the present utility model will be further described. Wherein, the horizontal direction is perpendicular to the extension direction of the roadway 4 to be filled.

[0032] Using the high-pressure spraying technology to spray the sealing coating on the wall surface of the roadway 4 to be filled to form a waterproof coating 41 has the advantages of high construction efficiency, good coating quality and strong durability.

[0033] Optionally, the thickness dimension of the waterproof coating 41 is 2mm - 6mm. Optionally, the thickness dimension of the waterproof coating 41 is 3mm - 5.5mm. Optionally, the thickness dimension of the waterproof coating 41 is 3.5mm - 4mm. On the one hand, it ensures that the thickness dimension of the waterproof coating 41 is sufficient to achieve the effects of waterproofing, anti-seepage and durability, etc. On the other hand, it avoids the problem of too high cost caused by too large thickness dimension of the waterproof coating 41.

[0034] Wherein, the thickness dimension of the waterproof coating 41 includes but is not limited to 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm or 6mm.

[0035] In some embodiments, there are multiple first through holes 11, and the multiple first through holes 11 are arranged on the first wall 1, and the multiple first through holes 11 are spaced apart in the horizontal direction. There are multiple filling pipes 3, and the multiple filling pipes 3 are respectively arranged through the multiple first through holes 11 in a one-to-one correspondence. By arranging the multiple filling pipes 3, the filling efficiency of the long strip roof-connecting filling system 100 of the embodiment of the present utility model is improved.

[0036] Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2m - 3.5m. Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2.2m - 3.3m. Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2.9m - 3m. Thus, it is ensured that the multiple filling pipes 3 can uniformly fill the roadway 4 to be filled.

[0037] In some embodiments, the long strip roof-connecting filling system 100 of the embodiment of the present utility model further includes an exhaust pipe (not shown in the figure), and a second through hole is also provided in one of the first wall 1 and the second wall 2. The exhaust pipe is arranged through the second through hole to communicate the outside with the filling chamber 42. The gas in the filling chamber 42 is discharged by using the exhaust pipe, thereby further improving the filling effect of the long strip roof-connecting filling system 100 of the embodiment of the present utility model.

[0038] In some embodiments, there are multiple second through-holes (not shown in the figure), and the multiple second through-holes are provided on the second wall 2 and are spaced apart in the horizontal direction. There are multiple exhaust pipes, and the multiple exhaust pipes are respectively inserted through the multiple second through-holes. By arranging multiple exhaust pipes, the gas in the filling chamber 42 can be discharged more evenly, thereby further improving the filling effect of the long strip roof-contact filling system 100 according to the embodiment of the present invention.

[0039] In some embodiments, the multiple exhaust pipes and the multiple filling pipes 3 are arranged alternately in the horizontal direction. On the one hand, the multiple exhaust pipes and the multiple filling pipes 3 are arranged alternately in the horizontal direction for exhausting gas and strengthening the foundation. The filling pipes 3 and the exhaust pipes are arranged alternately to form multiple air-permeable channels, so as to avoid an increase in air pressure caused by excessive bubble gas during grouting, which increases the resistance during grouting and the difficulty of pumping grout, and to avoid uneven distribution of the grouting slurry due to excessive bubbles, and when the gas cannot be effectively discharged in the concrete or grouting material, voids will be formed or the structure will become loose. These voids and loose structures will significantly reduce the bearing capacity and durability of the structure and affect the grouting effect. Exhausting gas can effectively discharge these bubbles, ensure the uniformity of the grouting slurry, avoid voids in the filling body, improve the roof-contact rate after gob filling, and thus effectively improve the foundation stability and reduce the foundation settlement. On the other hand, the filling pipes 3 and the exhaust pipes are arranged alternately in the horizontal direction, covering the entire space above the soil slope to form larger air-permeable voids, while also shortening the construction time and improving the filling effect.

[0040] Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2 m - 3.5 m. Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2.2 m - 3.1 m. Optionally, the spacing distance between adjacent filling pipes 3 in the horizontal direction is 2.8 m - 3 m. This is beneficial to discharging the gas in the filling chamber 42 more evenly, thereby further improving the filling effect of the long strip roof-contact filling system 100 according to the embodiment of the present invention.

[0041] In some embodiments, a groove 431 is formed on the top wall surface of the filling chamber 42. The filling pipe 3 has a first slurry outlet 31, and the first slurry outlet 31 is located within the groove 431. By forming the groove 431 on the top wall surface and placing the first slurry outlet 31 within the groove 431, it is ensured that the filled body formed after slurry filling can better contact the top wall surface of the roadway 4 to be filled, thus improving the filling effect. The groove 431 can guide the slurry flowing out of the filling pipe 3 during grouting. At the same time, the size of the groove 431 in the vertical direction is larger than the sizes of the filling pipe 3 and the exhaust pipe, or in other words, the height of the uppermost part of the groove 431 is higher than those of the filling pipe 3 and the exhaust pipe, so as to prevent the slurry from penetrating into the barrier pad above the roof contact surface. Meanwhile, water stop plates can be arranged on both the upper and lower sides of the groove 431 respectively. The upper water stop plate should be parallel to the contact surface, and the lower water stop plate should maintain a certain gap from the filling pipe and the exhaust pipe to prevent the filled slurry from overflowing. The groove and the water stop plate can also be made of wear-resistant and corrosion-resistant plastic or metal materials, thereby preventing the groove 431 or the water stop plate from being worn due to the movement of the pipes under pressure during grouting.

[0042] In some embodiments, the long strip roof-contact filling system 100 of the embodiment of the present utility model further includes a dehydration device. The dehydration device includes a second slurry outlet, and the filling pipe 3 has a slurry inlet, and the second slurry outlet is communicated with the slurry inlet. It can be understood that during the filling process, excessive moisture will cause the filling material to be loose and unstable, thus affecting the safety and reliability of the project. The dehydration device is used to dehydrate the slurry to improve the density and stability of the filled body, thereby further enhancing the safety and reliability of the project.

[0043] For example, in the filling project of an underground mine, the centrifugal dehydration technology is adopted to dehydrate the filling slurry. Specifically, the filling slurry is poured into a centrifuge, and the moisture and gas in the document are separated by the high-speed rotation of the centrifuge to obtain the dehydrated filling slurry. Then, the dehydrated filling slurry is locally stacked and vibrated to further remove the air in the filling slurry and improve the density and stability of the filled body, so as to meet the requirements of the reliability of the filled body.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0046] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0048] In the present utility model, terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A long strip top - filling system, characterized in that, Including: A first wall and a second wall for plugging and filling a roadway to be filled, the first wall and the second wall are arranged at intervals in the roadway to be filled to form a filling chamber, and one of the first wall and the second wall is provided with a first through hole; a waterproof coating formed by high-pressure spraying a sealing coating on the wall surface of the roadway to be filled, the waterproof coating is arranged on the inner wall surface of the filling chamber, and the thickness dimension of the waterproof coating is 2 mm - 6 mm; a filling pipeline for grouting into the filling chamber, the filling pipeline passes through the first through hole to communicate the outside with the filling chamber; The first through holes are multiple, and the multiple first through holes are arranged on the first wall and are spaced apart in the horizontal direction; The filling pipelines are multiple, and the multiple filling pipelines respectively pass through the multiple first through holes in a one-to-one correspondence.

2. The long strip roof filling system according to claim 1, characterized in that, The interval distance between adjacent filling pipelines in the horizontal direction is 2 m - 3.5 m.

3. The long strip roof-contact filling system according to claim 1, characterized in that, Further including: An exhaust pipeline, and one of the first wall and the second wall is further provided with a second through hole, and the exhaust pipeline passes through the second through hole to communicate the outside with the filling chamber.

4. The long strip roof contact filling system according to claim 3, characterized in that, The second through holes are multiple, and the multiple second through holes are arranged on the second wall and are spaced apart in the horizontal direction; The exhaust pipelines are multiple, and the multiple exhaust pipelines respectively pass through the multiple second through holes in a one-to-one correspondence.

5. The long strip roof filling system according to claim 4, characterized in that, The multiple exhaust pipelines and the multiple filling pipelines are arranged alternately in the horizontal direction.

6. The long strip roof contact filling system according to any one of claims 1-5, characterized in that, A groove is formed on the top wall surface of the filling chamber, and the filling pipeline has a first slurry outlet, and the first slurry outlet is located in the groove.

7. The long strip roof caving filling system according to any one of claims 1-5, characterized in that, Further including: A dehydration device, the dehydration device includes a second slurry outlet, the filling pipeline has a slurry inlet, and the second slurry outlet is communicated with the slurry inlet.

Images